Non Slam or Surge Arresting Air Valve

Non Slam (NS) or Surge Arresting (SA) Air Valves are designed to allow large air intake, preventing the risk of excessive negative pressure that may cause collapse of the pipe, and to restrict air outflow when discharge air velocity exceeds a threshold value. This creates a slow closing 'air cushion' that decelerates the water velocity, preventing a water hammer effect from occurring.

Directing the Flow

Non Slam or Surge Arresting Air Valve

Non Slam (NS) or Surge Arresting (SA) Air Valves are designed to allow large air intake, preventing the risk of excessive negative pressure that may cause collapse of the pipe, and to restrict air outflow when discharge air velocity exceeds a threshold value. This creates a slow closing 'air cushion' that decelerates the water velocity, preventing a water hammer effect from occurring.
27 S 300 NMS PS NR 0 8 App iom typical installation scaled
Solution Components
NR 040 8 BLUE CATALOG ISO
A.R.I. NR-040 D
Check Valve for Waterworks
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Alternative Products
Arisense Swg – A.R.I. NR-010 WW
A.R.I. NR-010
Wafer Style Check Valve
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Arisense Swg – A.R.I. D-060 NS WW
A.R.I. D-060 NS
Full-bore, Non-slam, Combination Air Valve Series
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Alternative Products
Arisense Swg – A.R.I. D-050 NS WW
A.R.I. D-050 NS
Reduced Bore, Non-slam, Combination Air Valve Series
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Arisense Swg – A.R.I. D-46 WW
A.R.I. D-46
Full-bore, Combination Air Valve Series
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Arisense Swg – A.R.I. D-040 WW
A.R.I. D-040
Reduced Bore, Combination Air Valve Series
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Directing the Flow

Solution Components
Arisense Swg – A.R.I. D-060 WW
A.R.I. D-060
Full-bore, Combination Air Valve Series
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Alternative Products
Arisense Swg – A.R.I. D-050 WW
A.R.I. D-050
Reduced Bore, Combination Air Valve Series
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Arisense Swg – DOROT DAV-MH-KA WW
DOROT DAV-MH-KA
Full-bore, Combination Air Valve Series
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Arisense Swg – A.R.I. D-46 WW
A.R.I. D-46
Full-bore, Combination Air Valve Series
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Arisense Swg – A.R.I. D-040 WW
A.R.I. D-040
Reduced Bore, Combination Air Valve Series
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Arisense Swg – DOROT S100 RE WW
DOROT S100 RE
Weir-type Diaphragm, Surge-anticipating Globe Valve
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Alternative Products
Arisense Swg – DOROT S300 RE WW
DOROT S300 RE
Diaphragm-actuated, Rigid Seal, Surge-anticipating Globe Valve
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Arisense Swg – DOROT S300 DW WW
DOROT S300 DW
Diaphragm-actuated, Rigid Seal, Deep-well (Borehole) Pump Control Globe Valve
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Alternative Products
Arisense Swg – DOROT S100 DW WW
DOROT S100 DW
Weir-type Diaphragm, Deep-well (Borehole) Pump Control Globe Valve
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